Ride Into Action on Your Hearthsteed!
It looks like the blue version of the Hearthsteed is active, along with the Hearthstoned achievement.

Originally Posted by Blizzard
(Blue Tracker)

Show off your love for Hearthstone’s fast-paced card-slinging action by charging across the battlefields of Azeroth on a magnificent Hearthsteed!

This epic flying mount is awash in a mystical blue glow; its rocky exterior just barely manages to contain the power that lurks within! When you’re ready to take to the skies, the Hearthsteed manifests ethereal blue wings, ready to carry you off to your next adventure.

How to get a Hearthsteed of your very own

Interested in adding the Hearthsteed to your World of Warcraft mount collection?

Getting your hands on this unique flying mount is simple . . . and fun! Just win three games of Hearthstone in “Play” or “Arena” mode to get the "Mount Up!" Hearthstone quest reward. The next time you log into World of Warcraft, the Hearthsteed will be waiting for you in the nearest mailbox.

Earn this special mount and you’ll also receive the World of Warcraft “Hearthstoned” achievement for all characters on your Battle.net account.

@unholy there's not a single trading card game that isn't pay to win so of course if you don't put money you won't be able to compete, just because hearthstone is digital doesn't make it any different except that they give you free cards to begin with!!

Try fighting that one card that has the same level of attack as his health and have Anduin *Lol buff his health to 18-20 damage and rape your face*

Disclaimer: I don't condone rape, it's just a figure of speech so don't hate >_<

You shouldn't be so 'on your toes'. Despite what the Social Justice Police would have you think, the use of the word rape unless it's super serious isn't the greatest crime, even beyond genocide. Don't worry, man.

But yeah, I certainly agree. It's so annoying to be paired up like that. ._.